EPA Air · stack tests by county and year
Air-emissions stack tests in DeKalb County, Indiana, 2025
- 77Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in DeKalb County, Indiana during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the DeKalb County facility page.
DeKalb County, Indiana, 2025
Air-emissions stack tests in DeKalb County, other years
Air-emissions stack tests recorded in DeKalb County, Indiana, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-09-25 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-25 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-25 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-25 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-25 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-09-16 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | Pass | State |
| 2025-08-27 | BROOKS CONSTRUCTION COMPANY INC | Pass | State |
| 2025-08-27 | BROOKS CONSTRUCTION COMPANY INC | Pass | State |
| 2025-08-27 | BROOKS CONSTRUCTION COMPANY INC | Pass | State |
| 2025-08-27 | BROOKS CONSTRUCTION COMPANY INC | Pass | State |
| 2025-08-04 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-06-18 | BROOKS CONSTRUCTION COMPANY INC | Pass | State |
| 2025-06-18 | BROOKS CONSTRUCTION COMPANY INC | Pass | State |
| 2025-06-18 | BROOKS CONSTRUCTION COMPANY INC | Pass | State |
| 2025-06-18 | BROOKS CONSTRUCTION COMPANY INC | Pass | State |
| 2025-06-18 | BROOKS CONSTRUCTION COMPANY INC | Fail | State |
| 2025-03-04 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-03-04 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-03-04 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-02-04 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-02-04 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-02-04 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-02-04 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-02-04 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-02-04 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-30 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-30 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-30 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-30 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-30 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-30 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-30 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-30 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-30 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-30 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-30 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-30 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-29 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-29 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-29 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-29 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-29 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-29 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-29 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-29 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-29 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-29 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-29 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-29 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-28 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-28 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-28 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-28 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-28 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-28 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-28 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-28 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-28 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-28 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-28 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-28 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
| 2025-01-28 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.